— About Greysand
We make buildings last longer.
A professional construction-support company built around a simple commitment: protect what our clients have invested in and built.
— Our story
Deliberate about how we work, on every site we touch.
Greysand Builders is a Nairobi-based waterproofing, plumbing and renovation company serving homeowners, developers, contractors and institutions across the region.
We assess the real condition of a building before recommending a solution, balancing quality, durability, safety, cost and time at every stage. Whether it’s a single wet area or a multi-block contract, the same written, accountable process applies.
— Mission & vision
What we're working toward.
Our mission
To provide high-quality services that combine technical expertise, innovation, reliability and superior workmanship on every site we touch.
Our vision
To become a leading and trusted waterproofing, plumbing and renovation company across the region, known for work that lasts.
— Standards we hold
Quality, safety & sustainability — built in.
Not certificates on a wall — practices built into every stage of our process, and the reason a Greysand job looks the same whether it’s a single wet area or a multi-block contract.
NCA Registered
Operating as a registered contractor within Kenya's regulatory framework.
Site safety practices
PPE, hazard identification and controlled work areas on every site.
Sustainable materials
Durable systems and responsible resource use, chosen per project.
Documented QA
Inspection, corrective action and documentation at every handover.
— What sets us apart
Real capabilities. Not invented numbers.
Here’s what you can expect when you work with Greysand Builders.
Specialised expertise
Substrates, drainage, water movement, joints and penetrations — all considered before we recommend anything.
Skilled workforce
Teams that understand preparation, workmanship, safety and attention to detail.
Quality materials
Systems selected based on the specific requirements of each project.
Transparent communication
You'll always understand what's proposed, why it's needed and what to expect.
Practical solutions
Technically sound recommendations that respect budget and timeline.
Quality & safety
A strong focus on workmanship, quality control and site management.
Reliable delivery
Work completed within agreed schedules, without cutting corners.
After-service
A relationship that doesn't end at handover — protecting long-term value.
Joseph Karanja
At Greysand Builders, every project begins with a simple
commitment — to protect what our clients have invested in and
built. Water damage is often invisible until it becomes
expensive, and our work exists to make sure that never happens
on our watch. I am proud of the standards our team holds itself
to, from the first site visit to the final handover, and grateful for
the trust our clients continue to place in us. This profile reflects
not just what we do, but how we intend to keep doing it — with
care, precision and accountability.
— Where we work
Based in Nairobi, on site across the city and beyond.
Get in touch with your location and we’ll confirm coverage — most sites within the areas below are reachable within a day of the initial call.
Want to know more before you get in touch?
Browse our services in detail, or head straight to a site visit request.